Subaru XT 1988 Service Manual page 1195

6-1
ENGINE ELECTRICAL SYSTEM
4) Brush spring force
Measure brush spring force with a spring scale. If it is less than
the service limit, replace brush spring.
Brush spring force:
Standard
18.6 N (1.9 kg, 4.2 Ib) (when new)
Service limit
6.9 N (0.7 kg, 1.5 Ib)
SWITCH ASSEMBLY
Be sure there is continuity between terminals Sand M, and
between terminal S and body ground. Use a circuit tester (set
in "ohm").
Also check to be sure there is no continuity between terminal
M
and B.
Fig. 22
Terminal
S -M
S - Body ground
M -B
Starter
body
ASSEMBLY
Continuity
Continuity
No continuity
Circuit tester
L6-1463
Assembly is in the reverse order of disassembly procedures.
Observe the following:
1) Carefully assemble all parts in the order of assembly and
occasionally inspect nothing has been overlooked.
2)
Apply grease to the following parts during assembly.
• Front bracket sleeve bearing
• Armature shaft gear
• Outer periphery of plunger
• Mating surface of plunger and lever
14
• Gear shaft spl i nes
• Mating surface of lever and clutch
• Ba II at the armature shaft end
• Internal and planetary gears
3) After assembling parts correctly. check to be sure starter
operates properly.
Alternator·
1800cc model
TEST
Notes on alternator test:
a) The lead wires between alternator terminal B and battery
positive terminal, and between alternator terminal Land
battery negative terminal must be less than 2.5 m (8.2 ft) in
length and greater than 8 mm
2
(0.012 sq in) in section area.
b) The switch used in the circuit must have as small a contact
resistance as possible.
DC ammeter
(0-100A)
0.25n
Resistor
/
Connect when
_, battery is
k:l;p;Q~,/ r-----,<I,=-"'--r---rl-'~-
__
'+-,,'
discharged
Fig. 23
DC voltmeter
(O-30V or 0-75V)
Measuring regulated voltage
o
position
Variable
resistor
(O-0.25nl
L6·369
Open switch SW1 and close switch SW2 in the circuit shown
above to raise the alternator speed to the rated speed of
6,000
rpm, and measure the voltage on the voltmeter.
The regulated voltage must be 14.1 to 14.8 V.